/Engine/Plugins/Runtime/RigVM/Source/RigVMDeveloper/Public/RigVMBlueprint.h
[TArray](API\Runtime\Core\Containers\TArray)< [IRigVMGraphFunctionHost](API\Plugins\RigVM\RigVMCore\IRigVMGraphFunctionHost) * > GetReferencedFunctionHosts ( bool bForceLoad )